Questenaتمرینی که نشان می‌دهد بعد چه چیزی را مرور کنید
سؤال 98

During a VHF/UHF contest, in which band segment would you expect to find the highest level of SSB or CW activity?

  1. At the top of each band, usually in a segment reserved for contests
  2. In the middle of each band, usually on the national calling frequency
  3. In the weak signal segment of the band, with most of the activity near the calling frequencyپاسخ درست
  4. In the middle of the band, usually 25 kHz above the national calling frequency

توضیح

VHF and UHF band plans reserve the bottom of each band for weak-signal CW and SSB and put a national calling frequency in it, so that is where contest operators gather, working near the calling frequency and moving off it for the contact. There is no contest-only segment at the top of these bands, and the middle of the band is used for FM and repeaters.

ادامهٔ این آزمون

شروع تمرین
سؤال 98: During a VHF/UHF contest, in which band segment would you… · FCC Amateur Extra Class (Element 4) · Questena